When I did the neck on my lockdown Mandolin project I bought a couple of cheap chinese made wood rasps from the local luthiers supply because they were what most people seem to use, even though its a tool that's always been completely off my radar. I have to admit I'm thoroughly converted and I've used them for a number of shaping jobs that I'd have done differently before. No doubt, being cheap, they'll be blunt before too long, but I've found them ideal for semi rough shaping where I might previously have used a power tool or a chisel.

That does look like a interesting and nice shape though with the bevels as opposed to rounded off cuts like a Fender. Food for thought.